21095989 is an odd 8-digits prime number following 21095988
and preceding 21095990 . In scientific notation, it is written as 2.1095989 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 21095988 positive integers (up to 21095989) that are relatively prime to 21095989.
21095989 has 2 divisors, whose sum is 21095990
The reverse of 21095989 is 98959012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million ninety-five thousand nine hundred eighty-nine
Scientific notation
2.1095989 × 10^7
Engineering notation
2.1095989 × 10^6
Prime Factorization
21095989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21095989
Product of the distinct prime numbers
The prime factorization of 21095989 is 21095989.
Since it has a total of 1 prime factors.
10 , 7 , 80 , 12 , 253 , 489 , 2955 , 1422 , 31175 , 77281 , 833823 , 109428 , 2449493 , 4335718 , 53383836 , 26985757 , 573540940 , 535445912 , 8106396061 , 3267766852
n×2
42191978
n×3
63287967
n×4
84383956
n×5
105479945
n÷2
10547994.5
n÷3
7031996.3333333
n÷3
5273997.25
n÷5
4219197.8
n2
445040751888121
n3
9.3885748063835E+21
n4
1.9806127084114E+29
n5
4.1782983909908E+36
2 √n
4593.0370126965
3 √n
276.3121381073
4 √n
67.771948567947
5 √n
29.163522448475
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21095990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10547995
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4593.0371215569
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051953
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21095989 can be divided by 2 positive divisors.
The sum of these divisors (counting 21095989) is 21095990, the average is 10547995.
Base
System
Value
2
Binary
1010000011110011000110101
3
Ternary
1110200210020221
4
Quaternary
1100132120311
5
Quinary
20400032424
6
Senary
2032054341
8
Octal
120363065
10
Decimal
21095989
12
Duodecimal
70943b1
16
Hexadecimal
141e635
20
Vigesimal
6bgjj9
36
Base36
ck5rp
md5
40bed174c4754cec0457eb815eb0919f
sha1
614369d84d5d597307c5f10175b8653813a5164b
sha256
d4a989c114a1f8b41cd66592b815448ae35f10ec4e3a70ab6b9c750e14842531
sha512
c332004a0db75349fffec87d7def58db3bb0afa5bafbb38c66ac818e60443a63904f0eca6ac7cb394f4b1aa2fe345ea0961242ce0bfe146e405374aab3c2427a
ripemd-160
2a238d91847a326718d0e8c4ce1e6d4fbf472d71
Diameter
42191978
Circumference
132550008.12522
Area
1.3981367566798E+15
Volume
3.9326770185884E+22
Surface area
5.5925470267192E+15
Circumference
132550008.12522
Perimeter
84383956
Area
445040751888121
Diagonal
29834233.755474
Surface area
2670244511328726
Volume
9.3885748063835E+21
Space diagonal
36539324.783914
Perimeter
63287967
Area
1.9270829842722E+14
Altitude
18269662.391957
Surface area
1.9270829842722E+14
Volume
1.1064541518785E+21
Height
9944744.5851579